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Immaculate Conception School

Diocesan school · Grades Pre-K–8

Annandale, NJ

314 Old Allerton Rd, Annandale, NJ 08801

Overall grade: A

ChooseAPrivateSchool.com grade, from official facts compared with similar schools.

  • A-Class size
  • A-Years serving families
  • B+Diversity

What stands out

  • Serving families in Annandale since at least 2011

In Annandale, New Jersey, Immaculate Conception School is a Catholic diocesan school for students from pre-K through 8th grade. About 333 students attend, with roughly 11 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Metuchen. The school day runs about 7 hours, 180 days a year.

At a glance

Grades
Grades Pre-K–8
Students
333
Teachers
29.5 (full-time equivalent)
Students per teacher
11.3
Boys and girls
Coed · 131 girls, 202 boys
Religious affiliation
Catholic · Diocesan school
School day
About 7 hours
School year
180 days
Library
Yes

Reviews

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    How it compares

    • Smaller classes than 57% of Catholic elementary schools in New Jersey (11 students per teacher).
    • Larger than 79% of Catholic elementary schools in New Jersey.
    • Compared with 120 Catholic elementary schools in New Jersey.

    Students by survey year

    474’11–12409’13–14376’15–16376’17–18260’19–20265’21–22333’23–24

    Total students reported in official records since 2011–12.

    Students by grade

    Pre-K92
    K43
    TK14
    137
    231
    348
    436
    536
    630
    723
    835

    Student body

    White86%
    Two or more races7%
    Hispanic or Latino5%
    Asian2%
    Black1%

    Member of

    • National Catholic Educational Association

    Questions to ask on a tour

    • What is tuition, and what does it include (books, fees, uniforms, trips)?
    • Do you offer financial aid, sibling discounts or payment plans?
    • Do you accept ESA, voucher or tax-credit scholarship funds?
    • How big are classes in my child's grade?
    • What support is there for students who need extra help or more challenge?
    • Is the school accredited, and by whom?
    • What do a typical day and a typical week look like?
    • How does the school communicate with families?

    More questions to ask →

    Questions about Immaculate Conception School

    What grades does Immaculate Conception School serve?

    Immaculate Conception School serves grades Pre-K–8.

    How many students attend Immaculate Conception School?

    About 333 students, with 11 students per teacher, according to official records.

    How much is tuition at Immaculate Conception School?

    Call the school to ask about tuition, financial aid and payment plans.

    Official record · Updated October 2026 · Official search · Something wrong? Tell us

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